Non-Canonical Books of Oz

"Wizard of Oz" author L. Frank Baum did create some Oz material that isn't strictly considered "Canon." Beyond a few theater productions, he produced an Oz-related comic strip titled "Queer Visitors from the Land of Oz" and also "The Woggle-Bug Book: The Strange Adventure of the Woggle-Bug". They were later published in book form as "The Visitors from Oz" and, later, "The Third Book of Oz."
A search on Amazon.com also turned up "The Scarecrow and Tin Man of Oz," in which the Scarecrow and Tin Man plan a Christmas celebration for Dorothy.

Tompy the drummer boy and Yankee the Air Force dog meet the Red Jinn of Eve and defeats a giant who is threatening both America and Oz in "Yankee in Oz."
In "The Enchanted Island of Oz," David B. Perry and his talking camel Humpty Bumpty find themselves on Kapurta, an island stranded in the sky. David must supply the magic to move the island and visit the Emerald City in time for the Cowardly Lion's birthday party.
The International Wizard of Oz Club published both and consider them to be #41 and #42 after the Big Forty of Oz's canon.

"The Forbidden Fountain of Oz," by Eloise Jarvis McGraw and Lauren McGraw Wagner. Ozma takes a sip of limeade made from the Forbidden Fountain, forgets who she is and disappears. As the androgynous Poppy, she befriends reformed unsuccessful bandit Tobias Bridlecull, Jr. and a white lamb named Lambert. Kabumpo the circus elephant sets out to rescue her, but he believes Toby to be a kidnapper, so she does not want to be saved. Considered book #43 by the International Wizard of Oz Club.

"The Wicked Witch of Oz" by Rachel Cosgrove. Considering the title, you would think this would be about the Wicked Witch of the West. However, this introduces the Wicked Witch of the South, who has awakened from a 100-year nap. Considered book #44 by the Club.

"The Runaway in Oz" by John R. Neill. This was written in 1943 but not published until 1995. Scraps the Patchwork Girl is upset because everyone ignores her while a group of Winkie dignitaries visits the Emerald City. She runs away, finds her way to Jinjur's Munchkin Country farm and Professor Wogglebug's Athletic College, and meets Popla the Power Plant.

"The Rundelstone of Oz" by Eloise Jarvis McGraw. Pocotristi Sostenuto, a living puppet, must find the magical Rundelstone so he can rescue his fellow puppets from the evil Slyddwynn, the Whitherd of Whitheraway Castle. Originally published in the sixth and final volume of Oz-story Magazine.

"Who's Who in Oz" by Jack Snow. This is a definitive list of Oz characters, combined with illustrations and the occasional poor pun.

"A Barnstormer in Oz", by Philip José Farmer, is set approximatly 30 years after "The Wizard of Oz." The son of Dorothy, Hank Stover, flies his airplane through a green cloud, and on the other side is Oz. The novel states that the events of "The Wonderful Wizard of Oz" are based on real events. Baum had been a newspaper reporter in Nebraska around the time Dorothy was transported to Oz; he interviewed her and later used his notes as the basis for the first novel.

"Dorothy of Oz" is written by L. Frank Baum's grandson, Roger S. Baum. This book is an unofficial sequel of the movie "The Wizard of Oz." Dorothy is transported back to Oz, which is being threatened by a Court Jester who has found the wand of the Wicked Witch of the West.

You saw this one coming, right? "Wicked: The Life and Times of the Wicked Witch of the West" is a revisionist version of Oz by Gregory Macguire. The novel presents events, characters and situations from Baum's books and the film in new ways, with several differences between the L. Frank Baum series and the Wicked Cycle. These differences arise from the original Oz functioning as a mirror-image of Kansas in a cultural and economic framework: Oz was wealthy, prosperous and had excellent agricultural yields while Kansas was characterized by economic hardship, environmental difficulties and poor harvests. The social strife described in the Wicked Cycle indicates that the two series are set in similar and internally consistent but distinctly separate visions of Oz. This book and its sequels are obviously aimed at adults, with some adult language and content.

"Son of a Witch" focuses on the Wicked Witch's son and "A Lion Among Men" focuses, obviously, on the Cowardly Lion. These three books form the "Wicked Years Trilogy."